| 摘要 |
A resin seal package (60) which comprises a metal film (15), and a sealing resin (10) cured as it is left contacted with the metal film (15), wherein the package terminal shape is such that the metal film (15) formed on the terminal surface will not come off the sealing resin (10). Further, a package is in the form of a terminal forming board (30) having a metal film (15) transferred onto the sealing resin (10), characterized in that the forming board is a multi-layer metal board (50) composed of two metal layers. Further, this package is such that the multi-layer metal board (50) is formed of layers different in the degree to which they are corroded by acid or alkali etching. And at least one layer of the terminal forming board (30) is etched more progressively in the transverse direction than the other layers and the sealing resin (10) filled in holes is so formed as to act as an anchor on the more progressively etched portion. |
